Glass-working apparatus.



. "ALL lSPINASSEl GLASS WORKING APPARATUS.

APPLICATION FILED OCT. 2, 1909. y

Patented dan. 4, 1916.

.H/Z V I l/llIllIlI/llllllllllllllllll/IlI/llllllllllll] sartene. E.srmesss, or MOUNT vennen, oHio, Assronon fro'rrr'rsnnnen PLATE Guesscontraria', ou PITTSBURGH, PENNSYLVANIA, A conrona'rlon or PENNSYL-veure.

GLASS-WORKING APPARATUS.

Specification of Letters Patent Patented Jan.; s, i916 Application ledOctober 2, 1909. Y Serial No. 52G,703.

To all whom t may concern:

Be it known that I, ARTHUR E. SPiNAssE, a citizen of the United States,residing at Mount Vernon, in the county of Knox and State of Ohio, haveinvented certain new and useful Improvements in Glass-Working Apparatus,of which the following is a full, clear, and exact description. i

This invention relates to improvementsin glass working apparatus, andhas among its objects to provide a novel form or construction of glassfurnace in which there is relative movement between the drawing tank andthe inclosing hood, in this case comprising a stationary drawing tankand a movable hood arranged to be moved to eX- pose at will diiierentdrawing compartments of the stationary tank.

With these and incidental objects in view the inventionconsists incertain novel combinations4 and constructions hereinafter set forth indetail and a preferred form ef ein# loodiment of which is shown intheaccompanying drawing, forming part of this specification.

In said drawing, Figure 1 shows a sectionalized view of thestationar'yvtank and movable hood Figure 2 shows a similar view with thehood shifted laterally to expose one of. the tank compartments fordrawing; Figure 3 shows a drawing tank arranged for constantcommunication with the supply tankg- Figure 4f represents a horizontalsectionalized view of the construction illustrated in Figure 2; Figure 5represents the form of construction` of. the compartment walls of the'tank for shutting olf the heat flow in the shifting movements of thetank, a detail of which is shown in Figure 6.

Referring to said drawings, the stationary tank 20 ismounteduponsuitable supports 2l and is formed with compartment walls 22which divide the ends'of the tank into two drawing compartments 23,suitable apertures 24 being provided to connect-.thesedrawingvcompartments with the mairhody.

of the glass in the central portion The cylindrically shaped hoodlfl'sur-.-

mounts the tank and is supported bya' framework 27 carrying rollers 28traveling upon a track 29 so that the entire hood can be shiftedlaterally to expose either' of..

the lateral compartments 23. In Figure 2 the hood is shown 'shifted tothe right so as to expose the left hand compartment 23 for drawingpurposes.

The heat for maintaining the molten glass at the proper temperature fordrawing, is communicated to the interior of the movable hood through thecylindrical housing 30, shown in Figures 3 and 4, this housing' beingstationary relatively to the movable hood 'and separated therefrom. Itwill be understood of course that the front of the hood 1s closed, so asto join the tankas shown at 3l in Figure 3; but in order to prevent theescapeof heat from between the hood 26 and the housing 30 when the hoodis shifted laterally, a flanged construction is utilized as shown inFigures 2 and 4; The housing 30 formed with annular anges 32 which Ywhen the hood isin the central position shown in Figure 1, will registerwith corresponding annular flanges 33 formed on the adjoining side ofthe hood. It results from this construction' that. when the hood ismoved from the position shown in Figure lA munication .of heat to theinterior Vof the hoody and thus heatingthe glass within the maincompartment 25 and the right hand drawing compartment 23. v 'lheny whenthe hood isshifted to the left its full length, therighthandfcompartment having first been hea-ted ready for drawing, isthen en posed for drawing and the hood moves over' the left handcompartment 23 forheating the same just as it previously heated theright handl compartment.'

In Figure '3 the housing 30 and movable hood 26 are shownsumnouiiitingone'continuouslstationary tank serving as a combined supplyand" drawing tank-andthus avoiding the necessity of a separatesupplytank with a' communicating spout "betweenthev same and the drawing tank.In Figure, 5 'the movahlehood is shown somewhat attened'but with itsside walls extending upward vertically# And'the compartment walls 51areextended upwardly lso. as to come in Contact with the hood walls 50 whenthe hood is moved laterally1 supplying of molten glass or extra glass tothe tank if so desired, and the apertures 61 may be utilized for heatlues.

It will be understood that the supplemental compartments are to beclosed by a` slab mounted therein, which slab covers the surface of itscompartment with the exception of drawing apertures, sii'ch slab beingmarkedk A in Figure 4; of the drawings, and being in the nature of afloat.

While the forms rof mechanism herein shown and described areparticularly well adapted to accomplish the objects sought it is to' beunderstood that other constructions might be utilized for carrying outthese uiicr.

purposes all coming within the scope of the claims which follow.

What is claimed is as follows:

l. In a glass furnace structure, a tank'for moltenglass and a hood forretaining heat above the glass in said tank, said tank and hood beingrelatively movable and so constructed relatively as to .subject all ofthe glass in the bath to the heated gases in the Vtank when in operativeheating position and to uncover determinate sections of said tank whenshifted.

2. In a glass furnacestructure, a tank for molten glass, and a hood forretaining a Adepth of heated gas substantially equal to the depth of theglass above practically all the glass in said tank when in operativeposition, said tank and hood being relatively mov-.ble and soconstructed relatively as to glzr determinate sections of said tank andstill preclude material escapf` of heat from the furnace structure.

3. In a glass furnace structure, a tank for molten glass and a heatretaining hood construrterfl to subject the entire surface of the glassto heated gases within the tank when the hood. is in heating position,said tank and hood being relatively movable to uncover a determinatesection of said tank, and flanged shelves on the edges of said tank forI coacti on with the relatively movable edges of said hood to precludematerial escape of heat from the furnace. v

4. ln a glass furnace structure, a tank for molten glass and a travelingheat retaining hood element constructed to maintain heated gases'abovethe entire surfacel of the glass in the said tank when the hood isin heating position and permitting exposure of certain parts thereof.

5. In a glass furnace structure, a tank for molten glass, a-travelingheat retaining hood element constructed to maintain heated gases aboveall the `glass in the tank when in heating position and permittingexposure of certain parts thereof, and track and roller structure forsaid hood element.

6. A tank for molten glass comprising a constantly heated compartmentfor the body of the glass, stationary supplemental drawing compartmentsforming a part of said tank and fed from said first compartment, andmeans for closing any of said supplemental compartments and by the sameope-ration opening any other.

7. A tank for molten glass .mprising a constantly heated maincompartment for the body of the glass, supplemental drawingcompartments, in direct communication with the glass in the maincompartment and adjustable cover means for conducting heat to said maincompartment 'and any supplemental drawing compartment.

8. In a glas; furnace structure, a tank'for molten glas-k :omprising amain compartment for the body of glass, supplemental drawingcompartments fed by said main compartment, an overlying heat retaininghood normally covering all compartments for reducing, said tank and hoodbeing relatively movable to project one supplemental compartment -whilethe other compartment is within or brought within the reducing zoneofthe hood.

9. In a glass working apparatus, the combination with a tank for themolten glass, of a movable hood open at one end surmounting said tank;drawing compartments formed in said tank for selective exposureaccording to the position of said hood; a housing adjoining the open endof the said hood for conducting heat thereto; and means located betweensaid housing and said hood for preventing the escape of `heat outwardlyupon they movements of said hood.

l0. In a glass working apparatus, thel combination with a tank for? themolten glass, of a movable hood open at one end surmounting said tank;drawingcompartments formed in said tank for selective exposure accordingto the position of said4 tank with provisions permitting Y lateralshifting of the hood to selectively expose said compartments; a housingadjoining the open ei-il of the said hood foi* conducting heat thereto;with flanges extending from both said housing and said hood and havingtheir confronting surfaces contacting with each other to prevent theescape of heat outwardly in any of the lateral positions of Said hood.

12. In a glass furnace structure, the combination with a tank for moltenglass, of a hood open at one end, said tank and hood` being relativelymovable to selectively project sections of said tank, a housingadjoining the open end of the said hood, and complemental slidablyabutting flanges on said housing and hood to prevent the escape of heatoutwardly in any position of said hood.

13. In a glass furnace structure, the combination with a tank for moltenglass, of a h`ocd open at one end, said tank and hood being relativelymovable to selectively project sections of said tank, a housingadjoining the open end of the said hood, and com- .plemental slidablyabutting flanges on internal peripheral edges of said hood and housingAto prevent the escape of heat outwardly in any position of said hood.

14. In 'a glass furnace structure having a drawing compartment, a tankhaving a portion thereof permanently covered and a portable hood,coacting With the cover to retain the heat Within the tank, said tankand hood jected, and heat introducing port structure'` in said hood sodisposed as to directly int-roduce heat above either drawing compartmentwhile the other is projected.

In testimpny whereof I aliiX my signature in the presence of twosubscribing` witnesses.

ARTHUR nsPiNAssE.

Witnessesz HERBERT C. VVooD, ROLLIN R. MCINTIRE.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patent. Washington, I). C.

